Forging mechanism.



v J. R. BLAKESLEE.

PORGING MEOHANISM. APPLICATION FILED JUNE 14, 1911.

PaBIled Feb. 18, 1913.

3 SHEETS-SHEET l.

` INVENTOR.

mY ef J. R. BLAKESLEE.

` PORGING MBGHANISM.

APPLIOATION FILED JUNE 14,1911.

1,053,4'7L Patented Feb.18,1913.

3 SHEETS-SHEET 2.

wlmrsas .INVENTOK R. BLAKESLBB.

FORGNG MEGHANISM.

APPLICATION FILED JUNE 14, 1911. 953,471 Petentea Feb. 18, 1913.

3 SHEETS-SHEET 3.

` FMI-11.

www@ i' l j@ @G -fe fe.- M m f3, @fig/.LJ l y /ATTQKNEY- UNITED sTATEs,PATENT onnioiz.

JOHN R. BLAKESLEE, 0F CLEVELAND, OHIO, ASSIGNOR TO THE AJAX MANUFACTUR-ING COMPANY, 0F CLEVELAND, OHIO, A CORPORAJIIONjUF OHIO.

FORGIN-G MECHANISM. y

Specification. of Letters Patent.

Application filed .Tune 14, 1911.

To all whom t may concern Be it known that I, JOHN R. BLAKESLEE, acitizen of the United States, and a residentof Cleveland, county ofCuyahoga, and State of Ohio, have invented a new and useful Improvementin Forofing Mechanism, of which the following is a specification, theprinciple of the invention being herein explained and the best modeinwhich I have contemplated applying tltt principle, so as to distinguishit from other inventions.

The present invention, relating as indicated to forging mechanism, hasregard more especially to mechanism of this kind designed for theformation of articles, such as gear blanks and the like,

larger than its ends.

The object of the invention is the provision of mechanism for thehandling of work of this kind, whereby such articles may be formedcomplete in a single operation from a rod, or bar, or like continuoussection of stock.

To the accomplishment of these and related ends, the invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawings and the yfollowing description set forth in detailcertain 'mechanism embodyingthe invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawings Figure 1 is va plan view of a portion of anupsetting, orl

forging, machine embodying my present improvements; Fig. 2 is a verticalsection thereof taken on the line 2 2, Fig. 1; Fig. 3 is a horizontalsection thereof taken on the plane indicated by the line 3 3, Fig. 2,and showing the parts in a diii'erent operative osition from that inlwhich they appear in iig. l; Fig. 4 is a sectional view correspondingwith that of F ig..2, but showing the parts inquestion in a thirdposition; Fig. 5 is a rear end elevation of a portion of the mechanism,the parts involved being shown in the position in which they appear inFig. 4; Fig. 6 is a perspective view of two such parts removed from therest of the mechanism; and Fig. 7 represents a gear blank such as themechanism is adapted to form.

rll`he general construction and operation of the present machine is thesame as that characterised by having an intermediate upset portion thearrangement being such that members may move conjointly forwardlycorresponding with the header tool ordinarily used in forgingoperations. The present header tool, however, is blunt, terminating ina-tlat' face that is adapted to coperatie with the die .parts presentlyto be described. These die parts are two in number, ,each comprising asuitable holder and a die-member. The two die-members 3 and 4 are shownin perspective in Fig. 6 and are so mounted on their respective holdersas to have their common center line alined with the header tool, in thefinal upsetting operation. Of the two holders 5` and 6 carrying diemembers 3 and 4 respectively, the lirst is designed to be stationarilysupported on the bed of the machine, while the other 6 is reciprocablein a direction transverse to the line of movement of the header slide.The two die members are similarly supported in their Arespective holdersin dovetailed4 recesses 7 formed in the contiguous faces of said holderparts, Vsaid die and backwardly in said holders, movement forwardlybeing effected by the heading tool, previqusly referred to, coming upagainst the rear ends of the members, while compression springs 8 movesaid members rearwardly and normally retain the same in the positions inFigs. 1, 2 and'3, movement beyond such positions being limited by nuts 9on the outer ends of longitudinally disposed lbolts 10. Adjustment ofthe normal position of either die member in its holder may obviously besecured by adjusting such nuts along the bolts.

The die members 3 and 4, whichhave just been described, are provided,the one with a longitudinally extending recessll of 'semicylindricalform, the other with a corresponding tongue or rojection 12, wherebysaid members, when roughtinto laterally contacting position are moreor'less securely locked together. Said die members are designed todefine one end and a portion only of the main body of mainder of suchdie-space being defined by the die space, the retightly against saidplates, give the desired form which the -inished article is to assume,whether gear blank, as in the present ease, or of other form.

The stock which, in thel present case, will4 preferably be a rod ofcircular cross section, is fed in between the die members through theusual feed opening 15 in the forward end of the machine, first passinghowever, through a backing plate 16 which is disposed in front of thedie holders 5 and 6, or rather in front of the plates 14 secured to saidholders. This plate 16 is provided with an aperture 17 of suitable sizeand form to accommodate' the stock being used, the inner portion of suchaperture being formed in a cutter 18 of hardened steel, or like materialvthat is inset in the plate so as to lie usli with-its'inner face. Thisopening 1`7 in the backing plate is located to one side of thecenterline ofthe die space in thenal operativel position `of themembers, 'it being along this ln'e that the header tool advances,

"as has already been explained. Further- ,more the-transverse'recirocable movement of the die-holder 6 is su cient to withdraw the die'member 4 carried thereby beyond this feed opening, when such holders inits retracted position, as shownin Fig. 1'. Move-- ment'of such holder,however, to bring the die member carried "thereby laterally into'contact with thecomplem'ent'a die member mounted in t-he stationary holer, Will carry the plate 14 that is secured to thel front face of suchfirst holder entirely across the feed openin in the backing plate. Thesection of' stoc ,A accordingly, that has been introduced throu h suchopening between. the die 'inembers,'w1 lv be cut olf by the shearingaction 'of the moving' plate across the hardened cutter in the backingplate.

The coinpleteoperati'on ofithe mechanism may now be set forth. iAssuming the partsto bein the position illustrated in Fi 1, the stock isadvanced through the fee opening in the backing plate until its forwardend abuts against the cylindrical projection 12 formed on the inner faceof the die member carried by the movable holder. .Such forward-end ofthe stock will now rest on the ledge 19 in the die member that forms thecorres ondin end of the die (space, the size of, t ye stoc beingselected to substantially fill such portion of the space. The movableholder is next closed up, the first part of its transverse movementshearing off the portion of the stock that lies beyond the cutter plateand carrying such sheared-of portion into a position in alinement withthe center of the dies and header tool. In this position (see Fig. 3)such piece of stock will obviously be held with its respective endslocated in the reduced end portions of the die space formed by the diemembers, and the plates secured to the forward ends of the holders. Thefinal-operation consists in advancing the die members forwardly underthe pressure of the header tool, thereby closing the longitudinallymovable die members completely upon suchk stock, as shown in Fig. 4; thestock is thus upset and forced to fill the diespace which now assumesits final definitive form. The stock, of course, is suitably heatedbefore bein introduced into the mechanism, so that be properlyaccomplished... The adjustment of the die members in the holders,furthermore, is such as to allow the introduction of just the properlength of stock -to provide metal enough to fill the die spacecompletely, when the parts are brought into theirinal operativeposit-ions. After the upsetting step 4is thus completed, the withdrawalof is upsetting operation may the header'tool permits the retraction ofthe die members longitudinally, as Va result of, which the article, justformed, is left free A downwardly from the die; thereupon e.. movableholder is'wit-hdrawn to permit of'the introduction of a fresh section ofstock, andthe `operation repeated as before.

It will be seen from the fore oing de- 'scription that a sin leoperation orms the completed article, w iich is automaticallylre'- todropl moved so as to leave the place clear for the v next article to be.formed. At the same time no undue complexit l ofparts is in- '110volved, such as would ren er-the mechanism liable to get out of order,or cause trouble in f any other way in dealing with metal in a` heatedcondition, and frequentlyofconsiderable dimensions where the Aarticlesto be upsetI or forged are of a large lsize'.

Other modes of applying the i my invention may em loy the one explained,change ing made as regards the mechanism herein disclosed, provided themeans stated by any one of the following claims or the euivalent of suchstated means be'employe I therefore particularly'point out and distinctlclaim as my invention 1. in mechanism' of the class described, the

combinationwith' a die-member movable in one direction; of a seconddie-member movableA conjointly with said first die-member and also-in adirection transverse to the direction of such conjoint movement; and'direction transverse to that of the die-memmeans coperative with thesecond die-member mounted thereon, said second 'holder ber on itstransverse movement to sever a being provided with a recesscomplemensection from a piece of stock, said second tary to the one onsaid first holder; another g, die-member being adapted, during the rcdie-member mounted on'said second holder.I 70 mainder of its transversemovement, to carry said second die-member being com plemen-` saidsection into operative position between tary to said first member andmovable conthe two die members. jointly 'with the same toward and fromthe h 2. In mechanism ofthe class described, the recess on said secondholder; and a cutter,

combination with a die-member movable in said second holder beingadapted upon 75 one direction; of a second die-member-Inovtransversemovement to coperate' with: said able conjointly with said firstdie-member cutter to cut oifa section of stock and said and also in adirection transverse to thefdisecond die-member being` adapted thereuponrection of such conjoint movement; and to receive and carry such sectioninto proper means coperative with said second dievposition to be upsetbetween csaid two iego member on its transversemovement to severmembers.

v a section from a piece of stock, said second .6. I n mechanism' of theclass described, die-member being ormed, with a ledge the combination ofa die-.part comprising a whereby it will support and carry saidsecstationary holder rovided with .a recess tion, during the remainderof its transverse forming part of t efdie-spacefand -a die- 35 movement,into operative position between member mounted on said holder so as tobe the two die-members. movable toward andA from such recess; and

3. In mechanism of ythe class described, a second die-part comprisin aholder movthe combination with a die-member movable able towardV andfrom said rst holder in a in one direction; of a `-second die-memberdirection transverse to that of the die-mem- 90 movable conjointlyfvvith said first dieber mounted thereon, said second holder bememberand also 1n a. direction transverse ingv provided witha' recesscomplementary to the direction of such .conjoint movement, `to the one`on said first holder; another die* the contiguous faces of such membersbeing member mounted lon said second holder, said formed with a recessand with a complemensecond die-member being com lementary' to 95 taryprojection respectively, said 4projection said first member and mova leconjointly jformingfa gage' for a piece of stckrgand with thesame.toward Aand from the recess .'means coperative' with said second die:on said second holder;.a` plate disposedin Vfnember during`itstransverse movement, toI front: etsaidgdiefpartsfand having a -eed:1 sever asecton from said stock, said second opening; lated; tm` one`side of the center i100 '.1 member being formed witha ledgewherebyrline o f the' same-when; closed';1a'nd a cutter j* it willsupport and carry said section during securedfinsaid feedopening, said.second the remainder ofits transverse movement d iepart jbein ada tedupon transverse into operative position-between the two die@A"movement-tosear ofi) a section of stock prof 40 members. v `3`ectinlthrough'such-.reed opening and said 105 4. In jmechanisnJ ofthe .classdescribe secon disa-,member being adapted thereupon thecombinationvof'adie-part comprising `to'rece ive'and carryASuchsectwn'into'pro er stationary holder provided with, rece f osition"`to.;be upsetbetween said ftwo ie-V forming partIof-the die-spaceandiaadiI members." fi

member mountedv on said holder seaso be ngxriechanismpf .the classdescribed, lio

movable toward and from 'such recessgfand the combination.off.a die-partcomprising a' l .a second die-part comprisin a holdermovstationaryholder-,i af'plate, seciired thereto able toward and fromsaidv st holder in a: and .provided with afrecess forming partofr*direction transverseto that'of thedie-memv one end ofthe die-s acefan'd,a diemember 50 ber mounted thereon, `said second holderl mounted on'said'ho der soasto be movable ll15f- 'Y being provided witharecesscomplementary v toward and -ronrsaid plate; and -a second to theone on said rst holder, and another ldie-part comprisin 'a yholdermovable 'to-v die membermounted on saidsecond holder, -ward and `fromsai first holder in; a direc-:rlv

said lsecond..die-membery being @completion transverse to that ofthediemember y 5.5 mentary' to said'rst member and movable mountedVthereon, a plate secu red"to 'said 120,51 conjointl'y' with the sametoward-"andfrom second holder and provided withfa recess l, the recesson said second holder'. complementary to the recess in saidfrst' 5. Inmechanism of the class described, plate, and another die-member mountedon the combination .of a die-part comprising a said second holder, saidsecond die-'member 60 stationary holder provided with a recess beingcomplementary to said rst member f forming part of the die-space and vadieandv movable conjointly with the sametemember mounted on said holderso as to be Ward and from the plate -on' said v second movable towardand from such recess; and a holder. "f second die-part comprising aholder mov- 8. In mechanism .ofl 'the' class described,

35 able toward and from'said `first holder in a thecombination of adie=part comprising a 130 stationary holder, a plate secured thereto andprovided with a recess forming 'part of one end of the diespace, and adie-member mounted on said holder so as to be movable toward and fromsaid plate; a second diepart comprising a holder lnovable toward andfrom said first holder in a direction transverse to that of thedie-member mounted thereon, a plate=secured to said second holder andprovided with a recess complementary to the recess in said iirst plate,and another die-member mounted on said second holder, said seconddie-member-being oomplementary to said first member and mov-` ableconjointly with the same toward and 15 from the plate on said secondholder; and a cutter, the recessed plate on said second holder beingadapted upon transverse movement of the latter to out off a section ofstock and said second die-member being 20

